Основні поняття
Galileo OSNMA TTFAF can be significantly reduced through page-level processing and COP-IOD optimization.
Анотація
The content discusses the impact of Galileo's OSNMA protocol on Time To First Authentication Fix (TTFAF) and proposes optimizations to reduce it. The article dissects the TTFAF process, presents two main optimizations, and benchmarks them in various scenarios. It also evaluates the optimizations using real data and synthetic scenarios. The paper provides insights into improving TTFAF seamlessly into current products.
- Introduction to Galileo OSNMA and authentication protocols.
- Impact of OSNMA on TTFF and TTFAF.
- Proposed optimizations: page-level processing and COP-IOD.
- Evaluation in different scenarios: Open-Sky, Soft Urban, Hard Urban.
- Results show significant improvements in reducing TTFAF.
- Discussion on the effectiveness of optimizations in various scenarios.
Статистика
OSNMAは、平均TTFAFを60.9秒に改善します。
最適化された場合、ソフトアーバンシナリオでは、平均TTFAFが87.5秒に減少します。
ハードアーバンシナリオでは、最適化された場合、平均TTFAFが146.1秒に減少します。
Цитати
"Reducing the TTFAF as much as possible is crucial to integrate the technology seamlessly into the current products."
"We propose several strategies to reduce OSNMA TTFAF down to 44 seconds in the best-case."